PAM2321 Datasheet, PDF (5/11 Pages) Power Analog Micoelectronics – 3MHz,Fast Transient 2A Step-Down Converter

PAM2321
3MHz,Fast Transient 2A Step-Down Converter
Typical Performance Characteristics
T_A=25°C, C_IN=10µF, C_O=10µF,L=0.47µH, unless otherwise noted.
Efficiency vs Output Current
100
90
80
70
60
50
40
Vo=1.2V
L=0.47uH
30
20
10
0
1
Vin=3.3V
Vin=4.2V
Vin=5V
10
100
1000
Output Current (mA)
10000
Efficiency vs Output Current
100
90
80
70
60
50
Vo=1.8V
40
L=0.47uH
30
20
Vin=3.3V
Vin=4.2V
10
Vin=5V
0
1
10
100
1000
10000
Output Current (mA)
Efficiency vs Output Current
100
90
80
70
60
50
Vo=1.5V
40
L=0.47uH
30
20
Vin=3.3V
Vin=4.2V
10
Vin=5V
0
1
10
100
1000
10000
Output Current (mA)
Efficiency vs Input Voltage
100
90
80
70
60
50
40
30
20
10
0
1
Vo=2.5V
L=1uH
Vin=3.3V
Vin=4.2V
Vin=5V
10
100
1000
Output Current (mA)
10000
Efficiency vs Output Current
100
90
80
70
60
50
40
30
20
10
0
1
Vo=3.3V
L=1uH
Vin=4.2V
Vin=5V
Vin=5.5V
10
100
1000
Output Current (mA)
10000
Load Regulation
2.00
1.50
1.00
Vo=1.2V
L=0.47uH
0.50
0.00
-0.50
-1.00
-1.50
-2.00
0
Vin=3.3V
Vin=4.2V
Vin=5.0V
500
1000
1500
Output Current(mA)
2000
Power Analog Microelectronics,Inc
www.poweranalog.com
5
01/2013 Rev1.2